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stock-info-explorer

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A Yahoo Finance (yfinance) powered financial analysis tool. Get real-time quotes, generate high-resolution charts with moving averages + indicators (RSI/MACD/Bollinger/VWAP/ATR), summarize fundamentals, and run a one-shot report that outputs both a text summary and a Pro chart.

QUICK START

How to use this skill

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Source SKILL.md: https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/data/stock-info-explorer/SKILL.md

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Stock Information Explorer

This skill fetches OHLCV data from Yahoo Finance via yfinance and computes technical indicators locally (no API key required).

Commands

1) Real-time Quotes (price)

uv run --script scripts/yf.py price TSLA
# shorthand
uv run --script scripts/yf.py TSLA

2) Fundamental Summary (fundamentals)

uv run --script scripts/yf.py fundamentals NVDA

3) ASCII Trend (history)

uv run --script scripts/yf.py history AAPL 6mo

4) Professional Chart (pro)

Generates a high-resolution PNG chart. By default it includes Volume and Moving Averages (MA5/20/60).

# candle (default)
uv run --script scripts/yf.py pro 000660.KS 6mo

# line
uv run --script scripts/yf.py pro 000660.KS 6mo line

Indicators (optional)

Add flags to include indicator panels/overlays.

uv run --script scripts/yf.py pro TSLA 6mo --rsi --macd --bb
uv run --script scripts/yf.py pro TSLA 6mo --vwap --atr
  • --rsi : RSI(14)
  • --macd: MACD(12,26,9)
  • --bb : Bollinger Bands(20,2)
  • --vwap: VWAP (cumulative for the selected range)
  • --atr : ATR(14)

5) One-shot Report (report) ⭐

Prints a compact text summary (price + fundamentals + indicator signals) and automatically generates a Pro chart with BB + RSI + MACD.

uv run --script scripts/yf.py report 000660.KS 6mo
# output includes: CHART_PATH:/tmp/<...>.png

Ticker Examples

  • US stocks: AAPL, NVDA, TSLA
  • KR stocks: 005930.KS, 000660.KS
  • Crypto: BTC-USD, ETH-KRW
  • Forex: USDKRW=X

Notes / Limitations

  • Indicators are computed locally from price data (Yahoo does not reliably provide precomputed indicator series).
  • Data quality may vary by ticker/market (e.g., missing volume for some symbols).